How bad is voltage dips for computers?

[orangecat]

Just a minute ago the power went off for a second and when it came back on i noticed the light where dimmer for a few seconds so i assumed the power was not it's full 110-120v that it should be. i know most power supplies can run down into the low 90v range but I was wondering if the system is on and the mains voltage dips low enough could it damage your hardware? i assume no because nearly all PSU's have undervoltage protection but that doesn't mean it's 100% safe.

[Majestic]

voltage dips probably not, hardware damages from spikes/surges or ripples.

[Redsun20]

Just a minute ago the power went off for a second and when it came back on i noticed the light where dimmer for a few seconds so i assumed the power was not it's full 110-120v that it should be. i know most power supplies can run down into the low 90v range but I was wondering if the system is on and the mains voltage dips low enough could it damage your hardware? i assume no because nearly all PSU's have undervoltage protection but that doesn't mean it's 100% safe.

Dips are not something to worry about, it is when you get spikes is when shit breaks

[Lord_Karango17]

The PSU will turn off if the input is out of its operable range, so the PSU will turn off before it does very much.

[brokencross]

Like others have said, the PSU will shut off before any damage occurs. Actually, depending on your mains in your house, they will shut off even before that.

But buy a surge protector if you really are worried.

[Dzzope]

A good PSU will save your ass, But a brown out can be worse for your system as a spike will usually blow a trip / fuse and is considered more dangerous and was protected against for longer in PSU's generally.

 

It all depends on what your using and if the fail-safes work correctly.

[EcoBoost]

Just a minute ago the power went off for a second and when it came back on i noticed the light where dimmer for a few seconds so i assumed the power was not it's full 110-120v that it should be. i know most power supplies can run down into the low 90v range but I was wondering if the system is on and the mains voltage dips low enough could it damage your hardware? i assume no because nearly all PSU's have undervoltage protection but that doesn't mean it's 100% safe.

As long as you have a good quality PSU, it'll automatically shut off if power input or output goes outside of safe margins.